linux-kernel - Re: [PATCH 1/29] pinctrl: nomadik: simplify use of devm_ioremap

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Message-ID: <CACRpkdbHS5WTSgPqh4WAtQatH1U4thROqXqY07Sre2vxh2XJZw@mail.gmail.com>
Date:	Thu, 15 Aug 2013 22:02:37 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/29] pinctrl: nomadik: simplify use of devm_ioremap_resource

On Wed, Aug 14, 2013 at 11:11 AM, Julia Lawall <Julia.Lawall@...6.fr> wrote:

> From: Julia Lawall <Julia.Lawall@...6.fr>
>
> Remove unneeded error handling on the result of a call to
> platform_get_resource when the value is passed to devm_ioremap_resource.
>
> Move the call to platform_get_resource adjacent to the call to
> devm_ioremap_resource to make the connection between them more clear.
>
> A simplified version of the semantic patch that makes this change is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression pdev,res,n,e,e1;
> expression ret != 0;
> identifier l;
> @@
>
> - res = platform_get_resource(pdev, IORESOURCE_MEM, n);
>   ... when != res
> - if (res == NULL) { ... \(goto l;\|return ret;\) }
>   ... when != res
> + res = platform_get_resource(pdev, IORESOURCE_MEM, n);
>   e = devm_ioremap_resource(e1, res);
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

Patch applied.

Yours,
Linus Walleij
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